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Mr. Thoren undertakes to provide Graham Corporation, any security holder of Graham Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 2,009 shares acquired under the Graham Corporation Employee Stock Purchase Plan."}],"balance_after":318191,"source":{"system":"sec-edgar","filing":"0001062993-22-017400","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299322017400/form4.xml","form_type":"4"}},{"id":2196715,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-08-03T21:43:34.000Z","date":"2022-08-02","kind":"purchase","acquired":true,"shares":5000,"price":7.2,"value":36000.0,"ownership":{"direct":true},"balance_after":308682,"source":{"system":"sec-edgar","filing":"0001062993-22-017213","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299322017213/form4.xml","form_type":"4"}},{"id":2259165,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2022-05-24T21:03:21.000Z","date":"2022-05-23","kind":"grant","acquired":true,"shares":24420,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of the first three anniversaries of the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of the first three anniversaries of the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of the first three anniversaries of the date of grant."}],"balance_after":24420,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":24420},"source":{"system":"sec-edgar","filing":"0001062993-22-013391","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299322013391/form4.xml","form_type":"4"}},{"id":2380598,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-02-23T22:15:01.000Z","date":"2022-02-22","kind":"purchase","acquired":true,"shares":12500,"price":7.9,"value":98750.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.84 to $7.93, inclusive. Mr. Thoren undertakes to provide Graham Corporation, any security holder of Graham Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."}],"balance_after":303682,"source":{"system":"sec-edgar","filing":"0001062993-22-005370","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299322005370/form4.xml","form_type":"4"}},{"id":2582765,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-02T20:16:04.000Z","date":"2021-09-01","kind":"grant","acquired":true,"shares":17872,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This performance-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and is subject to forfeiture if certain vesting conditions are not met. The number of shares reported assumes maximum achievement of the performance criteria."},{"field":"shares","element":"transactionShares","label":"F2","text":"This performance-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and is subject to forfeiture if certain vesting conditions are not met. The number of shares reported assumes maximum achievement of the performance criteria."}],"balance_after":291182,"source":{"system":"sec-edgar","filing":"0000891839-21-000266","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183921000266/edgar.xml","form_type":"4"}},{"id":2582764,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-02T20:16:04.000Z","date":"2021-09-01","kind":"grant","acquired":true,"shares":8936,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This time-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3."},{"field":"shares","element":"transactionShares","label":"F1","text":"This time-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3."}],"balance_after":273310,"source":{"system":"sec-edgar","filing":"0000891839-21-000266","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183921000266/edgar.xml","form_type":"4"}},{"id":2687931,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2021-06-02T20:54:09.000Z","date":"2021-06-01","kind":"grant","acquired":true,"shares":11920,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"This performance-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and is subject to forfeiture if certain vesting conditions are not met. The number of shares reported assumes maximum achievement of the performance criteria."},{"field":"shares","element":"transactionShares","label":"F3","text":"This performance-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and is subject to forfeiture if certain vesting conditions are not met. The number of shares reported assumes maximum achievement of the performance criteria."}],"balance_after":264374,"source":{"system":"sec-edgar","filing":"0000891839-21-000186","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183921000186/edgar.xml","form_type":"4"}},{"id":2687930,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2021-06-02T20:54:09.000Z","date":"2021-06-01","kind":"grant","acquired":true,"shares":5960,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This time-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3."},{"field":"shares","element":"transactionShares","label":"F2","text":"This time-vested restricted stock award was granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3."}],"balance_after":252454,"source":{"system":"sec-edgar","filing":"0000891839-21-000186","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183921000186/edgar.xml","form_type":"4"}},{"id":2687929,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2021-06-02T20:54:09.000Z","date":"2021-06-01","kind":"grant","acquired":true,"shares":246494,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Mr. Thoren acquired these shares, with a per share value of $14.69, in connection with the registrant's acquisition of Barber-Nichols, LLC on June 1, 2021."}],"balance_after":246494,"source":{"system":"sec-edgar","filing":"0000891839-21-000186","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183921000186/edgar.xml","form_type":"4"}}]}